Theoretical study of thermoelectric properties of MoS2

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	Theoretical study of thermoelectric properties of MoS2
	H. H. Guo; T. Yang; P. Tao; Z. D. Zhang
	2014
发表期刊	Chinese Physics B
ISSN	1674-1056
卷号	23 期号:1
摘要	We systematically studied the thermoelectric properties of MoS2 with doping based on the Boltzmann transport theory and first-principles calculations. We obtained an optimal doping region (around 10(19) cm(-3)) for thermoelectric properties along in-plane and cross-plane directions. MoS2 in the optimal doping region has a vanishingly small anisotropy of thermopower possibly due to the decoupling of in-plane and cross-plane conduction channels, but big anisotropies of electrical conductivity sigma and electronic thermal conductivity kappa(e) arising from the anisotropic electronic scattering time. The kappa(e) is comparable to the lattice counterpart kappa(1) in the plane, while kappa(1) dominates over kappa(e) across the plane. The figure of merit ZT can reach 0.1 at around 700 K with in-plane direction preferred by doping.
部门归属	[yang teng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. ; yang, t (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; yangteng@imr.ac.cn
关键词	Mos2 Thermoelectric Properties Doping Anisotropy Molybdenum-disulfide Single-crystals Spectroscopy Power
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72545
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. H. Guo,T. Yang,P. Tao,et al. Theoretical study of thermoelectric properties of MoS2[J]. Chinese Physics B,2014,23(1).
APA	H. H. Guo,T. Yang,P. Tao,&Z. D. Zhang.(2014).Theoretical study of thermoelectric properties of MoS2.Chinese Physics B,23(1).
MLA	H. H. Guo,et al."Theoretical study of thermoelectric properties of MoS2".Chinese Physics B 23.1(2014).